212134441 has 16 divisors (see below), whose sum is σ = 220711680. Its totient is φ = 203788800.

The previous prime is 212134427. The next prime is 212134469. The reversal of 212134441 is 144431212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212134441 - 2⁵ = 212134409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212134421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577840 + ... + 578206.

It is an arithmetic number, because the mean of its divisors is an integer number (13794480).

Almost surely, 2^212134441 is an apocalyptic number.

It is an amenable number.

212134441 is a deficient number, since it is larger than the sum of its proper divisors (8577239).

212134441 is a wasteful number, since it uses less digits than its factorization.

212134441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its digits is 768, while the sum is 22.

The square root of 212134441 is about 14564.8357697572. The cubic root of 212134441 is about 596.3992124808.

Adding to 212134441 its reverse (144431212), we get a palindrome (356565653).

The spelling of 212134441 in words is "two hundred twelve million, one hundred thirty-four thousand, four hundred forty-one".